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I don't know why I don't have the correct ssl certificate or whatever. I use firefox 60(nightly) I am not sure if I deleted my certificates or what may have happened but it says ssl_error_weak_server_ephemeral_dh_key I don't know exactly what this means or how to get my dh key to give them the right key.

I don't know why I don't have the correct ssl certificate or whatever. I use firefox 60(nightly) I am not sure if I deleted my certificates or what may have happened but it says ssl_error_weak_server_ephemeral_dh_key I don't know exactly what this means or how to get my dh key to give them the right key.

Chosen solution

Note that users with the current and older Firefox releases can toggle these prefs to false on the about:config page to disable the cipher suites that are involved with the Logjam vulnerability.

hi jjpjjpjjp, this means that the webserver you're trying to reach is vulnerable to the recently published logjam vulnerability: http://arstechnica.com/security/2015/05/https-crippling-attack-threatens-tens-of-thousands-of-web-and-mail-servers/
please report that to webmaster of the site in question to fix that issue...
https://weakdh.org/

this is a vulnerability in the configuration of web-servers, that allows downgrading the encryption levels of connections so that third parties can listen in (so it will need to be fixed by the administrators of each affected webservers).
new browser versions should show you a warning message like the one you have referenced and block any connections to affected servers.

this is a vulnerability in the configuration of web-servers, that allows downgrading the encryption levels of connections so that third parties can listen in (so it will need to be fixed by the administrators of each affected webservers).
new browser versions should show you a warning message like the one you have referenced and block any connections to affected servers.

Note that users with the current and older Firefox releases can toggle these prefs to false on the <b>about:config</b> page to disable the cipher suites that are involved with the Logjam vulnerability.
*security.ssl3.dhe_rsa_aes_128_sha
*security.ssl3.dhe_rsa_aes_256_sha
----
*Bug 1138554 - NSS accepts export-length DHE keys with regular DHE cipher suites
Logjam: How Diffie-Hellman Fails in Practice:
*https://weakdh.org/

Helpful Reply

well after toggling both to false, I still get the error on the secure page I am accessing. I have, however, found a solution, for now, my Google Chrome has not been affected by this weak dh error and I can use it to access that specific page and probably any other page with such an error.

Edit: hold on. I had picked the wrong ones. I did what you said and that solved it perfectly. Thank you for your solution! I can now access the secure page using my mozilla browser.

well after toggling both to false, I still get the error on the secure page I am accessing. I have, however, found a solution, for now, my Google Chrome has not been affected by this weak dh error and I can use it to access that specific page and probably any other page with such an error.
Edit: hold on. I had picked the wrong ones. I did what you said and that solved it perfectly. Thank you for your solution! I can now access the secure page using my mozilla browser.